Danielle Collins extends her winning streak with another victory on the court
BY JAMES BECK Unseeded Danielle Collins just keeps winning. She made it 11 straight wins with another relatively easy straight-set win in Friday’s quarterfinals of the Credit One Charleston Open. This time, it was veteran Elise Mertens that suffered a 6-3, 6-4 loss at the hands of Collins, who continues on her retirement party year….